Home / 12,373.28-17,078.09-7,071.18

Finding the Fourth Proportional to 12,373.28, 17,078.09 and 7,071.18

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Solution

The fourth proportional to 12,373.28, 17,078.09 and 7,071.18 is: 9,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.28 : 17,078.09 = 7,071.18 : x
  2. Step 2: Convert to fraction form
    12,373.28/17,078.09 = 7,071.18/x
  3. Step 3: Cross multiply
    12,373.28x = 17,078.09 × 7,071.18
  4. Step 4: Simplify right side
    12,373.28x = 120,762,213.09
  5. Step 5: Solve for x
    x = 120,762,213.09/12,373.28
  6. Step 6: Final answer
    x = 9,759.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.